Sure! Here are the filled-in blanks:
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Perfect cubes
- 1 unit^(3) 1 x 1 x 1 = 1
- 64 units^(3) 4 x 4 x 4 = 64
- 512 units^(3) 8 x 8 x 8 = 512
- 729 units^(3) 9 x 9 x 9 = 729
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Not-perfect cubes
- 4 units^(3) - Why is it not a perfect cube? It falls between two perfect cubes. 1^(3) < 4 < 2^(3) 1 < 4 < 8
- 12 units^(3) 2^(3)<12<3^(3) 8 < 12 < 27
- 25 units^(3) 2^(3) < 25 < 3^(3) 8 < 25 < 27
- 600 units^(3) 8^(3) < 600 < 9^(3) 512 < 600 < 729
Let me know if you need any further assistance!